Metathesis reaction around the product to precipitate calcium stearate

Then filtered, washed with water, dried at about 90 ℃, derived products.
3 would 5.60g (0.1mol) of calcium oxide was suspended in 300mL, 55 ℃ hot water. Then 51.3g of chemical pure white foaming agent  stearic acid was dissolved in 350mL, 70 ℃ hot water, 0.75g of diethanolamine was added, stirred and emulsified. The emulsion has been prepared on the stearic acid was gradually added within 2h suspension of calcium oxide, and sufficiently stirred to form a white insoluble material is calcium stearate was filtered off and dried to give the product.
4 direct method equipped with  titanium dioxide a stirrer, a thermometer, 11:50 quantitative stearic acid and CaO, heating to melt slowly added under constant stirring catalyst H2O2, and evacuated, to control the reaction temperature 140 ~ 150 ℃, Reaction 1.5 ~ 2.0h. After completion of the reaction, the material was cooled and crushed to obtain the product. Reaction is as follows:
5 double decomposition method was dissolved in 20 times by mass of stearic acid in hot water, adding a saturated solution of caustic  pvc additive soda content, at about 75 ℃ saponification reaction of a dilute solution of sodium stearate. Then the calcium chloride content of 1074kg/m3 sodium stearate was added to the solution at about 65 ℃ metathesis reaction, the product to precipitate calcium stearate. Then filtered, washed with water, dried at about 90 ℃, ie finished...